authors |
Fateixa, S; Neves, MC; Almeida, A; Oliveira, J; Trindade, T |
nationality |
International |
journal |
COLLOIDS AND SURFACES B-BIOINTERFACES |
author keywords |
Silver sulfide; Anti-fungal activity; Nanoparticles; Silica |
keywords |
SINGLE-MOLECULE PRECURSORS; SILVER ION RELEASE; ESCHERICHIA-COLI; SILICA SPHERES; NANOPARTICLES; GROWTH; NANOCRYSTALLITES; FILMS |
abstract |
Submicron particles of amorphous SiO2 have been used to grow Ag2S nanophases at their surfaces. SEM and TEM analysis showed morphological well-defined nanocomposite particles consisting of Ag2S nanocrystals dispersed over the silica surfaces. These SiO2/Ag2S nanocomposites were investigated as anti-fungal agents against Aspergillus niger in different experimental conditions, including as nanofillers in cellulosic fibres. The anti-fungal activity in these composite systems is suggested to result from a synergistic effect due to Ag2S anti-fungal centres and the SiO2 surfaces in promoting the adsorption of the fungus. (c) 2009 Elsevier B.V. All rights reserved. |
publisher |
ELSEVIER SCIENCE BV |
issn |
0927-7765 |
year published |
2009 |
volume |
74 |
issue |
1 |
beginning page |
304 |
ending page |
308 |
digital object identifier (doi) |
10.1016/j.colsurfb.2009.07.037 |
web of science category |
Biophysics; Chemistry, Physical; Materials Science, Biomaterials |
subject category |
Biophysics; Chemistry; Materials Science |
unique article identifier |
WOS:000271371300045
|